Larynx Flashcards

1
Q

green dot

A

lamina of the cricoid cartilage

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2
Q

green arrow

A

origin of cricothyroid muscle, external surface of cricoid arch

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3
Q

a weak, breathy voice is caused by damage to:

A

unilateral damage to inferior laryngeal nerve (which provides motor innveration to instrinsic muscles of the larynx)

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4
Q

lateral cricoarytenoid action

A

ADduction of of arytenoids

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5
Q

red dot

A

epiglottic cartilage

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6
Q

vocalis innervation

A

inferior laryngeal nerve

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7
Q

green arrow + blue shaded area combined is known as:

A

glottis

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8
Q

bue arrow

A

muscular process of the arytenoid cartilage

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9
Q

red arrow

A

laryngeal ventricle

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10
Q

red area

A

lateral cricoid ligament

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11
Q

blue shaded area

A

quadrangular membrane

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12
Q

green arrow

A

laryngeal prominence of the thyroid cartilage

(adam’s apple)

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13
Q

blue arrow

A

insertior of cricothyroid muscle, inferior thyroid lamina

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14
Q

blue area

A

rima glottidis

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15
Q

blood supply inferior to the glottis

A

inferior laryngeal vessels from inferior thyroid vessels

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16
Q

yellow arrow

A

cricotracheal ligament

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17
Q

red arrow

A

vocal process of arytenoid cartilage

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18
Q

blue arrow

A

insertion of arytenoids, contralateral arytenoid

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19
Q

green arrow

A

origin of the cricoarytenoid, cricoid arch

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20
Q

pink line

A

vestibular ligament

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21
Q

red arrow

A

origin of vocalis, vocal process of arytenoid

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22
Q

thryoarytenoid action

A

shortening (relaxing) of arytenoids

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23
Q

blue arrow

A

superior horn of the thyroid cartilage

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24
Q

what provides sensory innervation to the glottis and infraglottic cavity

A

inferior laryngeal nerve

(internal laryngeal provides sensory to supraglottic)

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25
Q

green arrow

A

stalk of the epiglottic cartilage

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26
Q

green arrow

A

origin of arytenoids, body of arytenoid

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27
Q

red arrow

A

vocal process of the arytenoid cartilages

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28
Q

red area

A

lateral cricoid ligament

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29
Q

blue arrow

A

external laryngeal nerve

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30
Q

the piriform recess is between:

A

the cricoid and thyroid cartilages (blue)

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31
Q

which intrinsic muscle of the larynx is responsible for shortening (relaxing) arytenoids

A

vocalis, thryoarytenoid

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32
Q

blue arrow

A

superior horn of the thyroid cartilage

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33
Q

lateral cricoarytenoid innervation

A

inferior laryngeal nerve

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34
Q

cough reflex sensory and motor

A

in on vagus (x), out on vagus (x)

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35
Q

blue dot

A

cricoid cartilage

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36
Q

blue area

A

rima glottidis

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37
Q

muscles that move the whole larynx:

A

suprahyoid (elevate)

infrahyoid (depress)

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38
Q

red dot

A

epiglottic cartilage

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39
Q

tracheostomy location and procedure

A

between upper tracheal rings, long term solution for air to airway

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40
Q

green dot

A

vestibule of larynx

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41
Q

the lateral cricoarytenoid ADducts the vocal cords by:

A

pulling anteriorly on muscular process

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42
Q

pink arrow

A

cricoarytenoid joint

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43
Q

green arrow

A

superior laryngeal nerve (branch of vagus CN X)

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44
Q

which intrinsic muscle of the larynx ABducts the arytenoids

A

posterior cricoarytenoid

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45
Q

red arrow

A

laryngeal ventricle

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46
Q

blue arrow

A

insertion of lateral cricoarytenoid, muscular process of arytenoid

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47
Q

green arrow

A

origin of the thyroarytenoid, thyroid lamina

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48
Q

cricothyrotomy location and procedure

A

at the medial cricothyroid ligament (below the vocal cords) in an emergency to restore air to airway

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49
Q

green dot

A

lamina of the cricoid cartilage

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50
Q

green shaded area

A

lamina of the thyroid cartilage

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51
Q

what provides motor innervation to all of the internal laryngeal muscles?

A

inferior laryngeal nerve

not to be confused with the internal laryngeal nerve which provides sensory information to the supraglottic region

52
Q

green arrow

A

vestibular fold (mucosa wrapping around vestibular ligament)

53
Q

green arrow

A

vestibular fold (mucosa wrapping around vestibular ligament)

54
Q

the conus elasticus is made up of which structures?

A

vocal ligament (blue), lateral cricothyroid ligament (red)

55
Q

vocalis action

A

shortening (relaxing) of arytenoids

56
Q

blue arrow

A

vocal ligament

57
Q

blue arrow

A

insertion of lateral cricoarytenoid, muscular process of arytenoid

58
Q

green arrow

A

origin of posterior cricoarytenoid, posterior cricoid lamina

59
Q

blue arrow

A

vocal fold (mucosa wrapping around vocal ligament)

60
Q

the glottis is made up of:

A

vocal fold (green), rima glottidis (blue)

61
Q

pink bracket

A

supraglottic region

62
Q

red area

A

vestibule of the larynx

63
Q

green dot

A

thyroid cartilage

64
Q

what type of rotation occurs at the cricothyroid joint?

A

anteroinferior rotation of the thyroid on the cricoid

(red arrow)

65
Q

thyroarytenoid innervation

A

inferior laryngeal nerve

66
Q

green arrow

A

cricoid arch of the cricoid cartilage

67
Q

blue arrow

A

recurrent laryngeal nerve

68
Q

blood supply superior to the glottis

A

superior laryngeal vessels from superior thyroid vessels

69
Q

green arrow

A

inferior laryngeal nerve (branch of recurrent laryngeal nerve)

70
Q

lymph drainage inferior to glottis

A

follows veins to inferior deep cervical lymph nodes

71
Q

green arrow

A

thyrohyoid membrane (wraps completely around)

72
Q

blue arrow

A

insertion of the thyroarytenoid, body of arytenoid

73
Q

green arrow

A

origin of the thyroarytenoid, thyroid lamina

74
Q

green arrow

A

origin of arytenoids, body of arytenoid

75
Q

blue arrow

A

insertion of cricoarytenoid, muscular process of arytenoid

76
Q

lymph drainage superior to glottis

A

follows veins to superior deep cervical lymph nodes

77
Q

arytenoids innervation

A

inferior laryngeal nerve

78
Q

blue arrow

A

vocal ligament

79
Q

blue arrow

A

muscular process of arytenoid cartilage

80
Q

What are the two branches of the superior laryngeal nerve?

A

external and internal laryngeal nerves (blue and pink)

81
Q

green arrow

A

vocal fold

82
Q

what provides sensory innervation to the supraglottic laryngeal region?

A

INTERNAL layrngeal nerve (branch of superior laryngeal nerve) (pink)

83
Q

blue arrow

A

cricothyroid joint

84
Q

green arrow

A

cricoid arch of the cricoid cartilage

85
Q

blue arrow

A

piriform recess

86
Q

green arrow

A

arytenoid cartilages (paired)

87
Q

green arrow

A

median cricothyroid ligament

88
Q

intrinsic muscle of the larynx responsble for allowing deep breaths

A

posterior cricoarytenoid- ABducts the vocal cords to move them out of the way for air to enter trachea

89
Q

green arrow

A

origin of cricothyroid muscle, external surface of cricoid arch

90
Q

posterior cricoarytenoid action

A

ABduction of arytenoids

91
Q

blue dot

A

cricoid cartilage

92
Q

red line

A

ary-epiglottic ligament (from arytenoid cartilage to epiglottic)

93
Q

green dot

A

vestibule of larynx

94
Q

which instrinsic muscle of the larynx lengthens thyroid

A

cricothyroid

95
Q

green arrow

A

cricoid cartilage

96
Q

the recurrent laryngeal nerve changes names to the inferior laryngeal nerve when it:

A

dives deep to the inferior pharyngeal constrictor

97
Q

blue arrow and red area combined are known as:

A

conus elasticus

98
Q

pink arrow

A

cricoarytenoid joint

99
Q

instrinsic muscles of the larynx control the

A

shape and function of vocal folds

100
Q

green arrow

A

arytenoid cartilages (paired)

101
Q

red arrow

A

lateral cricothyroid ligament

102
Q

blue arrow

A

vocal ligament

103
Q

blue arrow and red area combined are known as:

A

conus elasticus

104
Q

the arytenoids ADduct the vocal cords by:

A

bringing the arytenoids together

105
Q

green arrow

A

vocal fold

106
Q

cricothyroid innervation

A

external laryngeal nerve

107
Q

blue arrow

A

insertior of cricothyroid muscle, inferior thyroid lamina

108
Q

when there is a mucosal lining on top of a ligament, the name changes to:

A

a fold

109
Q

green dot

A

thyroid cartilage

110
Q

the inferior laryngeal nerve passes __________ to the cricothyroid joint

A

posterior ( red arrow)

111
Q

green arrow

A

median cricothyroid ligament

112
Q

red arrow

A

inferior horn of the thyroid cartilage

113
Q

green arrow

A

origin of the cricoarytenoid, cricoid arch

114
Q

green arrow

A

origin of posterior cricoarytenoid, posterior cricoid lamina

115
Q

posterior cricoarytenoid innervation

A

inferior laryngeal nerve

116
Q

posterior cricoarytenoid aBducts the vocal cords by:

A

pulling posteriorly on muscular process

117
Q

which intrinsic muscle of the larynx does ADuction of the arytenoids

A

lateral cricoarytenoid, arytenoids

118
Q

blue arrow

A

vocal fold (mucosa wrapping around vocal ligament)

119
Q

blue arrow

A

insertion of cricoarytenoid, muscular process of arytenoid

120
Q

blue arrow

A

vocal fold (mucosa wrapping around vocal ligament)

121
Q

cricothyroid action

A

lengthening (tightening) of thyroid

122
Q

blue arrow

A

insertion of the thyroarytenoid, body of arytenoid

123
Q

green arrow

A

laryngopharynx

124
Q

green shaded area

A

lamina of the thyroid cartilage

125
Q

red dot

A

infraglottic cavity until it is officially called the trachea